Study of the angular distribution of the reaction [ital [bar p]p][r arrow][chi][sub [ital c]2][r arrow][ital J]/[psi][gamma][r arrow][ital e][sup +][ital e[minus]][gamma]
Journal Article
·
· Physical Review, D (Particles Fields); (United States)
We report on a study of the angular distribution in the reaction [ital [bar p]p][r arrow][chi][sub [ital c]2][r arrow][ital J]/[psi][gamma][r arrow][ital e][sup +][ital e[minus]][gamma]. Using a sample of 1904 events, we find that the contribution of helicity zero in the formation process is [ital B][sub 0][sup 2][lt]0.22 (90% C.L.), and that the normalized quadrupole amplitude in the radiative decay is [ital a][sub 2]=[minus]0.14[plus minus]0.06. The normalized radiative decay octupole amplitude [ital a][sub 3] is found to be consistent with zero.
- OSTI ID:
- 6276873
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:7; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Measurement of the ratio [sigma][ital B]([ital W][r arrow][ital e][nu])/[sigma][ital B]([ital Z][sup 0][r arrow][ital e][sup +][ital e][sup [minus]]) in [ital [bar p]p] collisions at [radical][ital s] =1. 8 TeV
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Mon Jul 11 00:00:00 EDT 1994
· Physical Review Letters; (United States)
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OSTI ID:7161272
Analysis of the decay [ital K][sub [ital L]][r arrow][pi][sup 0][gamma][gamma] and expectations for the decays [ital K][sub [ital L]][r arrow][pi][sup 0][ital e+][ital e[minus]] and [ital K][sub [ital L]][r arrow][pi][sup 0][mu][sup +][mu][sup [minus]]
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·
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· Physical Review, D (Particles Fields); (United States)
·
OSTI ID:6771399
Related Subjects
662340 -- Hadron Interactions-- (1992-)
662350 -- Decays of Mesons-- (1992-)
662390 -- Electromagnetic Processes & Properties-- (1992-)
662420* -- Properties of Mesons & Meson Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
ANGULAR DISTRIBUTION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BARYON-BARYON INTERACTIONS
BOSONS
CHARMONIUM
DECAY
DECAY AMPLITUDES
DISTRIBUTION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
J PSI-3097 MESONS
LEPTONS
MATTER
MESONS
MULTIPOLES
NUCLEON-ANTINUCLEON INTERACTIONS
OCTUPOLES
PARTICLE DECAY
PARTICLE INTERACTIONS
POSITRONS
PROTON-ANTIPROTON INTERACTIONS
QUADRUPOLES
QUARKONIUM
RADIATIVE DECAY
TRANSITION AMPLITUDES
VECTOR MESONS
662350 -- Decays of Mesons-- (1992-)
662390 -- Electromagnetic Processes & Properties-- (1992-)
662420* -- Properties of Mesons & Meson Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
ANGULAR DISTRIBUTION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BARYON-BARYON INTERACTIONS
BOSONS
CHARMONIUM
DECAY
DECAY AMPLITUDES
DISTRIBUTION
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
J PSI-3097 MESONS
LEPTONS
MATTER
MESONS
MULTIPOLES
NUCLEON-ANTINUCLEON INTERACTIONS
OCTUPOLES
PARTICLE DECAY
PARTICLE INTERACTIONS
POSITRONS
PROTON-ANTIPROTON INTERACTIONS
QUADRUPOLES
QUARKONIUM
RADIATIVE DECAY
TRANSITION AMPLITUDES
VECTOR MESONS